JPS578210A - Production of water-absorbing resin - Google Patents
Production of water-absorbing resinInfo
- Publication number
- JPS578210A JPS578210A JP8210480A JP8210480A JPS578210A JP S578210 A JPS578210 A JP S578210A JP 8210480 A JP8210480 A JP 8210480A JP 8210480 A JP8210480 A JP 8210480A JP S578210 A JPS578210 A JP S578210A
- Authority
- JP
- Japan
- Prior art keywords
- water
- gel polymer
- absorbing resin
- aqueous solution
- acrylic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a water-absorbing resin having excellent initial absorption rate and being suitable for diapers, by adiabatically polymerizing an aqueous solution of a mixture containing acrylic acid (alkali metal salt) and a polyfunctional monomer to form a gel polymer and then drying the gel polymer.
CONSTITUTION: An acrylic acid alkali metal salt (A), acrylic acid (B) and a polyfunctional monomer (C), e.g., methylenebisacrylamide, ethylene glycol diacrylate, are mixed together so as to provide a mol ratio, A/B, of 50W95/50W5, and a mol ratio, C/A+B, of 0.01W0.5/100. Then, the resulting monomer mixture is dissolved in water to make an aqueous solution having a concentration ≥20wt%, and this aqueous solution is polymerized adiabatically in the presence of a radical polymerization catalyst to form a gel polymer. Next, the water-absorbing resin is obtained by contacting this gel polymer with methanol containing, if necessary, at most 50wt% water to remove impurities or the like and drying the gel polymer at a temperature ≥100°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8210480A JPS578210A (en) | 1980-06-19 | 1980-06-19 | Production of water-absorbing resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8210480A JPS578210A (en) | 1980-06-19 | 1980-06-19 | Production of water-absorbing resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS578210A true JPS578210A (en) | 1982-01-16 |
JPH0131531B2 JPH0131531B2 (en) | 1989-06-27 |
Family
ID=13765100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8210480A Granted JPS578210A (en) | 1980-06-19 | 1980-06-19 | Production of water-absorbing resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS578210A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119830U (en) * | 1982-02-09 | 1983-08-15 | 松下電器産業株式会社 | Selective gas permeable membrane module |
JPS6160706A (en) * | 1984-09-01 | 1986-03-28 | Japan Vilene Co Ltd | Highly water-absorptive resin and water-absorptive sheet |
JPS6254751A (en) * | 1985-06-18 | 1987-03-10 | ザ、プロクタ−、エンド、ギヤンブル、カンパニ− | Hydrogel forming polymer composition used in absorbable structure |
JPH01292003A (en) * | 1988-05-19 | 1989-11-24 | Sekisui Plastics Co Ltd | Purification of water-absorbable resin |
JPH03174414A (en) * | 1989-09-28 | 1991-07-29 | Sanyo Chem Ind Ltd | Highly water-absorbent polymer composition, its production and highly water-absorbent article consisting thereof |
US5217654A (en) * | 1992-01-30 | 1993-06-08 | The C. A. Lawton Company | Two-stage mat forming preforming and molding process |
JP2003064125A (en) * | 2001-08-28 | 2003-03-05 | Nippon Junyaku Kk | Method for separating acrylic acid polymer powder and acrylic acid polymer powder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346389A (en) * | 1976-10-07 | 1978-04-25 | Kao Corp | Preparation of self-crosslinking polymer of acrylic alkali metal salt |
JPS5453165A (en) * | 1977-10-05 | 1979-04-26 | Sanyo Chem Ind Ltd | Production of water absorbing resin |
JPS55133413A (en) * | 1979-04-06 | 1980-10-17 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of crosslinked alkali metal acrylate polymer |
JPS5691837A (en) * | 1979-12-27 | 1981-07-25 | Nippon Shokubai Kagaku Kogyo Co Ltd | Absorbing agent |
JPS56136806A (en) * | 1980-03-29 | 1981-10-26 | Mitsui Petrochem Ind Ltd | Storage of solid titanium catalyst component containing highly active magnesium |
-
1980
- 1980-06-19 JP JP8210480A patent/JPS578210A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346389A (en) * | 1976-10-07 | 1978-04-25 | Kao Corp | Preparation of self-crosslinking polymer of acrylic alkali metal salt |
JPS5453165A (en) * | 1977-10-05 | 1979-04-26 | Sanyo Chem Ind Ltd | Production of water absorbing resin |
JPS55133413A (en) * | 1979-04-06 | 1980-10-17 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of crosslinked alkali metal acrylate polymer |
JPS5691837A (en) * | 1979-12-27 | 1981-07-25 | Nippon Shokubai Kagaku Kogyo Co Ltd | Absorbing agent |
JPS56136806A (en) * | 1980-03-29 | 1981-10-26 | Mitsui Petrochem Ind Ltd | Storage of solid titanium catalyst component containing highly active magnesium |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119830U (en) * | 1982-02-09 | 1983-08-15 | 松下電器産業株式会社 | Selective gas permeable membrane module |
JPS6242737Y2 (en) * | 1982-02-09 | 1987-11-02 | ||
JPS6160706A (en) * | 1984-09-01 | 1986-03-28 | Japan Vilene Co Ltd | Highly water-absorptive resin and water-absorptive sheet |
JPS6254751A (en) * | 1985-06-18 | 1987-03-10 | ザ、プロクタ−、エンド、ギヤンブル、カンパニ− | Hydrogel forming polymer composition used in absorbable structure |
JPH01292003A (en) * | 1988-05-19 | 1989-11-24 | Sekisui Plastics Co Ltd | Purification of water-absorbable resin |
JPH03174414A (en) * | 1989-09-28 | 1991-07-29 | Sanyo Chem Ind Ltd | Highly water-absorbent polymer composition, its production and highly water-absorbent article consisting thereof |
JPH0696619B2 (en) * | 1989-09-28 | 1994-11-30 | 三洋化成工業株式会社 | Super absorbent polymer composition, method for producing the same, and super absorbent article comprising the same |
US5217654A (en) * | 1992-01-30 | 1993-06-08 | The C. A. Lawton Company | Two-stage mat forming preforming and molding process |
JP2003064125A (en) * | 2001-08-28 | 2003-03-05 | Nippon Junyaku Kk | Method for separating acrylic acid polymer powder and acrylic acid polymer powder |
Also Published As
Publication number | Publication date |
---|---|
JPH0131531B2 (en) | 1989-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56131608A (en) | Production of acrylic acid polymer having excellent absorptive capacity for saline water | |
KR910000802A (en) | Manufacturing method of absorbent resin | |
BR0206696B1 (en) | Process for the production of crosslinked water absorption resin, water absorption resin and sanitary material | |
JPS55721A (en) | Aqueous dispersion of water-soluble high polymer complex | |
JPS5258785A (en) | Process for preparing acrylonitrile polymer melts | |
JPS532585A (en) | Preparation of polyethylene | |
JPS578210A (en) | Production of water-absorbing resin | |
ATE111924T1 (en) | CROSSLINKED WATER ABSORBENT POLYMER AND USE IN THE MANUFACTURE OF HYGIENE ARTICLES. | |
JPS56103207A (en) | Preparation of dried high-molecular weight water-soluble polymer | |
JPS56161413A (en) | Production of self-crosslinking water-absorbing resin | |
JPS5536273A (en) | Production of macromolecular material with high water-absorbing property | |
JPS5260887A (en) | Preparation of high molecular weight acrylamide polymer having high so lubility to water and low content of unreacted monomer | |
JPS53130789A (en) | Preparation of water absorbing resin | |
JPS56163105A (en) | Porduction of fluorine-containing polymer | |
JPS54146278A (en) | New semipermeable membrane | |
JPS56135505A (en) | Production of water-soluble vinyl polymer | |
JPS5672006A (en) | Novel copolymer and production thereof | |
Bhadani et al. | Kinetics of nitrogen dioxide initiated polymerization of acrylamide | |
JPS5798513A (en) | Production of hydrogel | |
JPS5558208A (en) | Production of swelling substance | |
JPS5757705A (en) | Aqueous dispersion of high-crystallinity vinylidene chloride polymer | |
JPS57121009A (en) | Preparation of water-soluble high-molecular weight polymer | |
JPS5763314A (en) | High water-absorption resin | |
JPS52138585A (en) | Preparation of acrylamide polymers | |
ATE44969T1 (en) | PRODUCTION OF POLY(ARYLENE KETONES). |